Blame test/backsmalls2.awk

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BEGIN {
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	pat["^\\s*$"] = pat["^\\s+$"] = pat["^\\s?$"] = pat["^\\s{1}$"] = 1
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	for (i in pat) {
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		if (" " !~ i) {
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			printf("pattern \"%s\" failed!\n", i) > "/dev/stderr"
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			exit 1
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		}
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	}
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	exit 0
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}